Water-tube boiler.



F. P. PALEN & W. BURLINGHAM.

WATER TUBE BOILER.

APPLICATION FILED OCT. 13. I914.

Patented Aug. 31, 1915.

2 SHEETSSHEET INVENTOBS 8 VI E N R 0 u T A COLUMBIA PLANOURAPH :0,WASHINGTON. D. c

F. P. PALEN & W. BURLINGHAM.

WATER TUBE BOILER.

APPLICATION FILED OCT. 13, m4.

1,152,341, Patented Aug. 31, 1915.

2 SHEETS-SHEEI 2.

ATTORNEYS rarns FREDERICK PALEN AND WILLIAM BURLINGHAM, OF

NEW'PORT NEVJ S, VIRGINIA.

WATER-TUBE BOILER.

Applieation filed October 13, 1914. Serial No. 866,425.

To all whom it may concern:

Be it known that we, FR DERICK P. PALEN and WILLIAM BURLINGHAM, citizensof the United States, residing at Newport News, in

the county of Warwick, State of Virginia.

have invented a new and useful Water-Tube Boiler, of which thefollowingis a specification.

Our present invention relates to a novel construction of a water tubeboiler wherein is employed an upper or central steam drum which isconnected on opposite sides with a series of drums, by means of nests oftubes, the central drum being of such size as topermit the removal ofany of the tubes Without disturbing the other tubes, anda plurality ofbaflles being provided, the result of which is that the products ofcombustion are con sumed and the heat units are effectively utilized toraise the water in the boiler to the desired temperature and to obtainthe requisite circulation between the steam drum and the series of waterdrums. devices of this character not only that the proper combustion iseffected but that the heat units be directed so as to impinge in acorrect manner against the heating surfaces, to cause an effective andrapid circulation and rapid generation of steam under all conditions,and by the present novel collocation of steam drum, water drums, tubesand battle plates, a complete combustion of the gases takes place priorto the passage of the products of combustion to the stack or exhaustflue, so that any oxygen admitted will combine with the products ofcombustion and a combustion takes placewhich is more perfect andthorough than has heretofore been accomplished. I g y y We employ batheplates on, opposite sides of each nest of tubes. The lower of saidbaffle plates converge upwardly so that the hot gases are temporarilypocketed in the top of the combustion chamber below the steam drum, sothat the surfaces of the lower nest of water tubes are acted on, notonly by the first combustion which takes place in proximity to thegrate, but also bythe sec ondary combustion which takes place in theupper portion of the combustion chamber, which is accompanied by theresultant intense heat, and which concentrates in the upper part of thecombustion chamber in proximity to the lower portion. ofthe steamSpecification of Letters Patent. Patentgd A 0;

It is essential in drum and the lower nests of tubes connectedtherewith. By such construction, intense heat is applied to the inner orlower nests of water tubes and a rapid upward circulation is created,which is directed in a downward direction to the upper nests of tubesand thereby prevents any lodgment of scale or impurities inthewatertubes. We are thus enabled to initially heat the lower nests oftubes to a high degree, which causes a rapid upward circulation, suchheat being rapidly lost as the products of combustion pass around andbeyond the upper diverging ballle plates, so that the circulation andsteam generated in the boiler is greatly increased and' maximumutilization of the heat units is obtained. It will therefore be seenthat our novel arrangement of drums, tubes and baflle plates causes theheat to be applied so a rapid circulationof water takes place in an upcurrent in the tubes next to the furnace and a resulting down current inthe tubes farthest away from the furnace. In order to assist thiscirculation and in order to. heat the cold feed water intro duced intothe boiler in a manner that will not retard or interfere with thenatural circulation of the water in the boilers, we have devised a novelmethod of introducing the feed water by introducing it at the upper endof the tubes in which the down circulation takes place so it will beheatedwhile passing down through these tubes. This method also assiststhe down circulation in these tubes and thereby assists thegeneralcirculation of the water in the boiler.

With the above in view, our invention consists of a novel water tubeboiler, which in cludes a novel construction and arrangement waterdrums, connecting of a steam drum, tubes, ballle plates and feed pipes.

Other novel features of our invention will hereinafter appear in thedetailed description.

For the purpose of illustrating our invention, we have shown in theaccompanying drawings forms thereof which are at present preferred byus, since the same will give in practice satisfactory and reliableresults, al-

though it is to be understood that the various instii'umentalities ofwhich our invention consists can be variously arranged and organ zed andthat our invention is not limited to the precise arrangement andorganization of these instrumentalities as herein, Shown and described.

, Figure 1 represents a sideelevation of a water tube boiler embodyingour invention. Fig. 2 represents a sectional elevation. Fig. 3represents a side elevation, partly in section,ot another type of watertube boiler embodying our invention. Fig. 4 represents asectionalelevation of Fig. 3. Fig. 5 represents a section through the boilershell, tubes and feed pipe.

I Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings. Referring first to the embodiment seen inFigs. 1 and 2, 1 designates the boiler setting or brickwork within whichis contained a grate 2. 3, 4and 5 represent intercommunicating waterdrums supported on the boiler setting 1 and connected with'the steamdrum 9 by nests of tubes. 6, 7 and 8 designatesimilarintercommunicating. water drums supported on the opposite side of theboiler setting and connected with the steam drum 9 by nests of tubes. 7We provide lower nests of tubes 10 and 11 connected with the lower waterdrums 5 and 8, respectively, intermediate the nests of tubes 12 and. 13,which communicate with the intermediate water drums 4 and 7,respectively, and upper nests of tubes 14and. 15, which communicatewithv the upper water drums 3 and 6 respectively. 16 and 17 designatediverging baflie plates, which are supported in proximity to the steamdrum 9 inany desired manner and which are directed downwardly and outwardly and preferably into close proximity to the lower nests of watertubes 10 and 11, respectively, it being noted that these baiile platesare shorter. than the tubes in proximity to which they are placed andtermi-- nate at a'point above the lower ends of said tubes. 18 and'19designate upwardly converging baftle'plates which are supported inproximity to the boiler setting and are directed toward the steam drumbetween the lower and intermediate nests of tubes, and

terminate a desired distance from the steam drum. 20 and 211 designatebaflle plates supported in proximity to the steam drum 9- and directeddownwardly between the upper and intermediate nests of tubes, so as tooverlie the upper portion of the intermediate nests of tubes andterminate a desired point above their lower ends. 22 and 2-3 desig nateupper baiile plates supported in proX imity to the water drums 3 and 6,respectively," and overlying the upper nests of tubes14 and 15,respectively, and terminating a desired distance from the steam .drum 9.24 and 25 designate water c0nve* ing pipes whichconnect the lowerportion of the interior of the steam drum. 9 with the water drums 5 and8, respectively. The

designate upper nests of tubes.

water drums 3 and 4 are in communication with each other through theconduits 26, and the water drums 4 and 5 are in communication with eachother through the conduits pipes which have branches 61 for introducingthe feed water into the upper end of the tubes in which the downcirculation takes place, whereby the natural or normal circulation isaccelerated. By arranging the bat fie plates in the manner set forth,the products of combustion, after being temporarily pocketed in thecombustion chamber by the battle plates 16 and 17, respectively, andafter impinging on the bottom of the steam drum 9, pass around the lowernests of tubes between the bafiie plates 16 and 18 and the baflie plates17 and 19 and then are directed downwardly between the baflie plates 18and 20 and the bafile plates 19 and 21, and are then directed upwardlybetween the ballle plates 20 and 22 and the baffle plates 21 and 23,passing through the fiues 30 to the stack 31.

Referring now to the embodiment seen in Figs. 3 and 4, we have shown inthis embodiment, water drums having a vertical arrangement and connectedwith their lower ends by means of nipples with horizontally arrangeddrums or chambers. 32 and 33 designate horizontal drums or chambers, thedrum 32 being connected by nipples 34 with the vertically arranged waterdrums 35. The horizontally arranged drum 33 is connected bynipples 36with the vertically arranged Water drums 37. The horizontal drums 32 and33 are supported on a steel or other foundation 38. 39 designates agrate. 4O designates the central or steam drum which is connected withthe drums 35 and 37 by nests'of tubes. 41 and 42 designate lower nestsof tubes. 43 and 44 designate intermediate nests of tubes, and 45 and 4647 designates a circulating pipe communicating with the drums 40 anddrum 32, and 48 designates a similar circulating pipe which is connectedwith the steam drum 40 and the horizontal drum 33. 49 and 50 designatediverging bafiie plates which are directed downwardly from the steamdrum 40 and extend beneath or within the lower nests of tubes 41 and 42.51 and 52 designate baiile plates located between the intermediate andlower nests of tubes and said bafiie plates have one end located inproximity to their respective water drums 35 and 37 and then convergeupwardly and terminate beneath lift) tubes.

1,152,341. i in;

the steam drum 40. 58 and 54 designate a third set of baflle plates, theupper ends of which are in close proximity to the steam pipes and 61 thebranch pipes which introduce the feed water into the tubes in which thedown circulation takes place. The products of combustion impinge againstthe bottom of; the steam drum l0 and are then directed downwardly by thebaffle plat-es and 50, then pass around the lower nests of tubes ll and4:2, thence between the baiiie plates 51 and 53 and'the battle platesand 42 around the intermediate nests of The products of combustion thenpass around the upper nests of tubes be tween the battle plates 53 and55 and between the battle plates and 56, and then pass to the exhausttiues 57 and 58, respectively.

In our device We provide a central steam drum of such diameter that itwill permit of sufficient space to allow the tubes to be withdrawnentirely thereinto, so that they can be readily removed from the centralsteam drum through a single man-hole,

thereby insuring the maximum strength and durability of the boilerwithout increasing the expense of the construction.

Owing to the provision of our novel arrangement of baiiie plates, hotgases are temporarily retarded in the top of the combustion chamber andthe passage of the gases around the nests of tubes is also retarded bythe battle plates in such a manner that substantially all of the heatunits are utilized before the products of combustion pass through thedischarge tiues.

In accordance with our present invention, we have provided a series ofintercommunieating water drums on each side ofthe main and central drum,it being understood that such water drums may be horizontally,vertically, or otherwise arranged, and the battle plates are arranged insuch a manner with respect to the nests of tubes thata thoroughcirculation and a maximum steam generation is obtained.

Our novel boiler carries several. times the amount of water other typesof water-tube boilers are adapted to carry, and provides a water areafor the disengagement of the steam from the surface of the water,several times as great as that of other types of water tube boilers.Furthermore, the large steam space makes it unnecessary to employ asteam separator, since the Water is not carried up into the steam, as isthe casein Water tube boilers of ordinary construction, which under aheavy fire are likely'to prime and carry water over into the steam.

The feed pump can be run with but little attention from the operator,even under considerable variations in load. The water tube boiler, asherein disclosed,.with the novel arrangement of bafliing, presents nopockets for the deposition of foreign material, which is largely thecause of the burning out of the tubes, and suilicient space is left topermit thehot gases to pass to all points of the tubes, so that airadmitted can combine with the carbon monoxid before it passes to theexhaust flue or stack.

It will now be apparent that we have devised a novel and usefulconstruction of a water tube boiler which embodies the features ofadvantage enumerated as desirable in the statement of the invention andthe above description, and while we have, in the present instance, shownand described preferred embodiments thereof which will give in practicesatisfactory and reliable results, it is to be understood that the sameare susceptible of modification in various particulars without departingfrom the spirit or scope of the invention or sacrificing any of itsadvantages. i

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent, is

1. A water tube boiler, comprising an upper steam drum, lower waterdrums, nests of tubes connecting the steam and water drums, a set ofbattle plates extending from the steam drum toward the water drums andlocated near the lower portion of the tube nests whereby an opening isprovided between the ends of the battle plates and the water drumsforthe admission of hot gases tothe tube nests, a second superimposedset of battle plates located in the tube nests and extending from thewater drums toward the steam drum, a third superimposed set of baftheplates located in the tube nests and extending from the steam drumtoward said water drums, and a fourth set of superimposed bai'tle plateslocated at the upper portion of the tube nestsand extending from thewater drums toward the steam drums, and said superimposed sets of battleplates forming penings to cause a circuitous travel of the hot gasesaround the nests of tubes.

2. A. water tube boiler, comprising an upper steam Cllull'l, lower waterdrums, nests of tubes connecting the steam and water drums, the steamdrum being of a size to ,ermit removal of a tube without disturbingother tubes, a set of battle plates extending from the steam drum towardthe water drums and located near the lower portion 4 of the tube nestswhereby an opening is pro videdbetween thev ends of the baffle-plates'andthe water drums for the admission of hot gases to the tube nests; asecond superimposed set of bafile vplates located in the tube nests andaextending from the water dILlHISl toward the a steam drum, a thirdsuperimposed set of baflie plates located in the tube nestsandiext'ending from the steam drum toward said -water drums, and afourth set of superimposed baffle plates eatodja't the'upper portion ofthe tube nests and extending from thewater drums toward the steam drums,and said superimposed sets of battle plates forming openings to cause acircuitous'travel of the hot gases around, the nests of tubes.

j 3. A water tube boiler, comprising an upper [steamdrum3 a plurality ofintercommunicating lower waterdrums on opposite sides of said steamdrum, nests ofntubes connecting the steam and water drums, asetof'baliie platesextending from the 1 steam 7 drumtoward the water drumsand located near the lower portion of the tube nests whereby an openingis provided between the ends of the batlie plate's'and the water drumsfor the-admission of hot gases to theztube' nests, a second superimposedset of bafiile j plates located in the tube nestsand extend- 3O ing fromthe water drums toward the steam .drum', a third superimposed set ofbailie .yopenings to cause a circuitous-travel of the ihotgases aroundthe nests of tubes.

' Y 4:. Awater tube boiler, comprising an upper steam drum lower waterdrums at op- 'posite sides of the steam drum, the water drums at asidecommunicating with each other through restricted water passages,

I nests of tubes connecting the steam and r ,-i waterdruins; a set ofbaiile plates extending Kip-from the steam drum toward the water drumsand located near the lower portion of the'tube 'nestswhereby' an opening1s pro- -vit ed between the ends of the baffle plates and the waterdrums for the admission of hot gases to, the tube nests, a second super-L-imposedset of bathe plates located in the tube nests and "extendingfrom the Water drums toward the steam drum, athird superimposed set ofbattle plates located in the tubenests and extending from the steam drumtoward 'saidwater drums,' and a fourth 'setof. superimposed battleplates located at the upper portion of the t-ube nests and extendingfrom the water drums toward the steam dr'ums,'--and said superimposedsets of baffle plates forming openings to cause' a i circuitous travelof the hot gases around the nests of tubes.

5. A. water tube boiler comprising an up per steam drum, lower waterdrums, nests of tubes connecting the steam and water drums, a set ofbaflle plates extending from the steam drum toward the water drums andlocated near the lower portion of the tube nests whereby an opening isprovided between the ends of the battle plates and the water drums forthe admission of hot gases to the tube nests a second superimposed setof bafiie plates located in the tube nests and extending from the waterdrums toward the steam drum, a third superimposed set of battle plateslocated in the tube nests and extending from the steam drum toward saidwater drums, and a fourth set of superimposed batlle plates located atthe upper portion of the tube nests and extending from the water drumstoward the steam drums, and said superimposed sets of ballle platesforming openings to cause a circuitous travel of the hot gases aroundthe nests of tubes.

6. A water tube boiler, comprising an upper steam drum, verticallyextending lower water drums, nests of tubes connecting the steam andwater drums, a set of bafiie plates extending from the steam drum towardthe water drums and located near the lower portion of the tube nestswhereby an opening is provided between the ends of the baitle plates andthe water drums for the admission of hot gases to the tube nests, asecond superimposed set of baliie plates located in the tube nests andextending from the water drums toward the steam drum, :1 thirdsuperimposed set of bailie plates located in the tube nests andextending from the steam drum toward said water drums, and a fourth setof superimposed baflle plates located at the upper portion of the tubenests and extending from the water drums toward the steam drums, andsaid superimposed sets of baffle plates forming openings to cause acircuitous travel of the hot gases around the nests of tubes.

7 7. A water tube boiler comprising an upper steam drum of relativelylarge diameter, a plurality of side water drums, three series of Watertubes on each side of said steam drum, common to said steam drum andsaid water drums, a lower pair of baflieplatos, diverging downwardlyfrom said steam drum, a second pair of superimposed bafile plates, abovesaid lower battle plates, and converging upwardly from said water drums,a third pair of superimposed bafile plates diverging downwardly fromsaid steam drum, anda fourth uppermost superimposed pair'of bafileplates converging upwardly toward said steam drum from said water drums,said superimposed sets of bafile plates, above said lower battle plates,and

converging upwardly from said water drums, a third pair of superimposedbailie plates diverging downwardly from said steam drum, and a fourthuppermost superimposed pair of battle plates converging upwardly towardsaid steam drum from said water drums, said superimposed sets of ballleplates forming openings to cause a circuitous travel of the hot gases,around said water tubes, in combination with a feed water pipe locatedin said steam drum and arranged to introduce the feed water into theupper ends of the tubes in which the downward circulation takes place.

9. A water tube boiler, comprising an upper steam drum of relativelylarge diameter, a plurality of side water drums, three series of watertubes on each side of said steam drum, common to said steam drum andsaid water drums, a lower pair of baflie plates, diverging downwardlyfrom said steam drum, a second pair of superimposed battle plates, abovesaid lower battle plates, and

converging upwardly from said water drums, a third pair of superimposedbaiile plates diverging downwardly from said steam drum, and a fourthuppermost superimposed pair of baille plates converging upwardly towardsaid steam drum from said water drums, said superimposed sets of battleplates forming openings to cause a circuitous travel of the hot gases,around said water tubes, in combination with a pair of main feed waterpipes located at opposite sides of said steam drum and provided withbranch pipes for discharging the feed water into the upper ends of thetubes in which the downward circulation takes place, therebyaccelerating said circulation.

10. A water tube boiler consisting of an upper steam drum, lower waterdrums and nests of tubes connecting the steam and water drums, incombination with feed pipes arranged so as to introduce the feed waterinto the upper end of the tubes in which the down circulation takesplace.

11. In a water tube boiler, an upper steam drum, lower water drums andnests of tubes connecting the steam and water drums, in combination withfeed pipes, and branch pipes for introducing the feed water into the topof the boiler tubes.

FREDERICK P. PALEN. WILLIAM BURLINGHAM.

Witnesses: G120. A. PARKER, McG. SINTON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

